Si2169-A20
Combo DVB-T2/T/C/S/S2 Digital TV Demodulator
Features
The Si2169 integrates DVB-T2, DVB-T, DVB-C, DVB-S, and
DVB-S2 digital demodulators into a single advanced CMOS
technology mixed-signal die for next generation terrestrial,
cable, and satellite TV standards. Leveraging Silicon Labs'
proven digital demodulation architecture, the Si2169
achieves excellent reception performance for each media
while significantly minimizing front-end design complexity,
cost, and power dissipation. Connecting the Si2169 to a
terrestrial and cable hybrid TV tuner or digital only tuner,
such as Silicon Labs’ Si2176/56/46 devices, results in a
high-performance and cost optimized TV front-end solution.
Silicon Labs internally developed DVB-T2 demodulator can
accept a standard IF (36 MHz) or low-IF input and support
all modes specified by the DVB-T2 standard. Main features
of the DVB-T2 mode are 256 QAM with rotated
constellations, SISO and MISO support, FEF management,
fully autonomous signal acquisition including automatic L1
signalling parsing, 600 kHz acquisition range, support for all
pilot patterns, and DVB-T2/T auto-detection. The DVB-T and
DVB-C demodulators are enhanced versions of proven and
broadly used Si2161/63/65/67 Silicon Labs devices.
The satellite demodulation functionality allows demodulating
widely deployed DVB-S, DIRECTV™ (DSS) legacy
standards, and next generation DVB-S2 and DIRECTV™
(AMC) satellite broadcasts. A zero-IF interface allows for a
seamless connection to market proven satellite silicon
tuners. Constant coding modulation (CCM), 64800 bits
frame, and single TS (broadcast profile) are the main
specifications of the DVB-S2 demodulator.
The Si2169 offers an on-chip blind scanning algorithm for
DVB-S/S2 and DVB-C standards (as well as blind lock). It
also integrates DiSEqC™ 2.0 LNB interface for satellite dish
control and an equalizer to compensate for echoes in long
cable feeds from the LNB to the satellite tuner RF input.
The Si2169 programmable transport stream interface
provides a flexible range of output modes and is fully
compatible with all MPEG decoders or conditional access
modules to support any customer application.
- DVB-T2 (ETSI EN 302 755)
- COFDM demodulator and FEC (LDPC/BCH) decoder
- Bandwidth: 1.7, 5, 6, 7 or 8 MHz (and extended BW)
- Supports up to 255 PLP(s) and outputs the data PLP
MP_C/_D (Sat.)
MP_A/_B (T & C)
Silicon Labs
TV Tuner
(Si217x/5x/4x)
-
(up to 4) to control satellite and T/C tuners
Firmware control for upgradeability
Flexible TS interface with serial or parallel single output
Fast lock times for all standards including DVB-T2
Only two power supplies: 1.2 and 3.3 V
7x7 mm, QFN-48 pin package, Pb-free/RoHS compliant
Applications
iDTV: on-board or in a NIM
Advanced multimedia STB
PC-TV accessories
PVR, DVD, and Blu-Ray disc recorders
FRONT
END
AGCs
1.2, 3.3V
DSP &
SYNCHRO
CTRL
GPIO
TS_ERR/
GPIO_1
nPSK
QAM
DEMOD
EQUALIZER
VITERBI
RS
OFDM
DEMOD
EQUALIZER
LDPC
BCH
TC_ADC_P
TC_ADC_N
RESETB
GPIO_0
-
TS_SYNC
TS_VAL
TS_CLK
TS_DATA
8
DVB-T2/T/C/S/S2
FEC MODULE
ADC
Ext. Clk or Xtal
OSC
& PLL
Si2169
HDTV MPEG S.o.C.
ADC (I)
ADC (Q)
ential ZIF I/Q inputs for satellite tuner
- GPIOs and multi-purpose ports for independent AGCs
MPEG TS
2.0
Satellite
ZIF Tuner
- DVB-T (ETSI EN 300 744)
- COFDM demodulator and FEC decoder
- NorDig Unified 2.2.1, D-Book 7.0 compliant
- DVB-C (ETSI EN 300 429) / ITU J.83 Annex A/C
- QAM demodulator and FEC decoder
- 1 to 7.2 MSymbol/s
- C-Book compliant
- DVB-S2 (ETSI EN 302 307 and TR102-376)
- QPSK/8PSK demodulator and FEC (LDPC) decoder
- 1 to 45 MSymbol/s
- DVB-S (ETSI EN 300 421)
- QPSK demodulator and FEC decoder
- 1 to 45 MSymbol/s
- DiSEqC™ 2.0 interface
- I2C serial bus interfaces (master and host)
- Independent differential IF input for T/C tuner and differ-
INTERFACE
DiSEqCTM
S_ADC_IP
S_ADC_IN
S_ADC_QP
S_ADC_QN
plus the common PLP (on a single TS)
- NorDig Unified 2.2.1, D-Book 7.0 compliant
- Firmware control (loaded in ROM)
DISEQC_OUT
DISEQC_IN
Description
CLK_IN_OUT
TUN_SDA
TUN_SCL
Multimedia Digital Demodulator
I2C
SWITCH
Copyright © 2012 by Silicon Laboratories
I2 C
I/F
HOST_SDA
HOST_SCL
6.8.2012
Si2169-A20
Combo DVB-T2/T/C/S/S2 Digital TV Demodulator
Selected Electrical Specifications
(TA = –10 to 75 °C).
Parameter
Test Condition
Min
Typ
Max
Unit
4
—
30
MHz
16
—
30
MHz
—
420
—
mW
—
190/180
—
mW
—
230/465
—
mW
2 layer PCB
—
35
—
°C/W
4 layer PCB
—
23
—
°C/W
Satellite DVB-S
45 MBaud
91
94
101
MHz
Satellite DVB-S2
32 MBaud
65
70
101
MHz
36 MHz IF/low-IF
—
56
65
MHz
VDD_VCORE
1.14
1.20
1.30
V
VDD_VANA
3.00
3.30
3.60
V
VDD_VIO
3.00
3.30
3.60
V
General
Input clock reference
Supported XTAL frequency
Total power consumption
DVB-T21
2
3
DVB-T /DVB-C
4
DVB-S /DVB-S2
Thermal resistance (JA)
5
Input ADC Sampling Clock
DVB-T2/T/C
Power Supplies
Notes:
1. Test conditions: 8 MHz, 256 QAM, 32K FFT, CR=3/5, GI=1/128, PP7, C/N at picture failure.
2. Test conditions: 8 MHz, IF mode, 8K FFT, 64 QAM, parallel TS output.
3. Test conditions: 6.9 Mbaud, IF mode, 256 QAM, parallel TS output.
4. Test conditions: 30 MBaud, CR=7/8, parallel TS (at QEF: BER = 2. 10–4).
5. Test conditions: 32 MBaud, 3/5 Code Rate, 8PSK, pilots On, parallel TS, C/N at picture failure (PER = 10–4).
30
29
28
TS_DATA[7]
31
GND
32
TS_ERR/GPIO_1
XTAL_O
33
VDD_VCORE
XTAL_I/CLK_IN
34
MP_C
ADDR
35
RESETB
GND
36
MP_D
VDD_VANA
Pin Assignments (Pin-to-Pin Compatible with the Si2167 and Si2168)
27
26
25
S_ADC_IP 37
24 TS_DATA[6]
S_ADC_IN 38
23 TS_DATA[5]
22 VDD_VIO
S_ADC_QP 39
Si2169
S_ADC_QN 40
TC_ADC_P 41
21 GND
20 VDD_VCORE
(GND_PAD)
TC_ADC_N 42
NC 43
19 TS_DATA[4]
18 TS_DATA[3]
QFN-48
7x7mm
CLK_IN_OUT 44
SDA_MAST 45
17 TS_DATA[2]
16 TS_DATA[1]
15 TS_DATA[0]/TS_SER
SCL_MAST 46
GND 47
14 TS_CLK
VDD_VCORE 48
7
MP_A
GPIO_0
DISEQC_CMD
DISEQC_IN
DISEQC_OUT
VDD_VCORE
8
9
10
11
12
TS_VAL
6
SDA_HOST
5
SCL_HOST
4
GND
3
VDD_VIO
2
MP_B
13 TS_SYNC
1
Selection Guide
Part #
Description
Si2169-A20-GM/R
Multimedia Digital TV Demodulator for DVB-T2/T/C/S/S2, 7x7 mm QFN-48
Multimedia Digital Demodulator
Copyright © 2012 by Silicon Laboratories
Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc.
Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders.
6.8.2012